And official info about the Knight Stereophonics K301 Preamplifier... “K301” is one of our newly designed tube preamplifier. The Preamplifier was specifically designed with Gain and Volume Control, which provides more listening variety by controlling the input gain (as some of the input source may have different recording gain level). 

Each unit weighted ~13kgs. The Vacuum tubes in each unit are 5U4G x 1, 6J5 x 2, Vintage 1950s Mullard VT52 x 2.

The listed price of K301 is US$3,400